/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.iotdb.db.mpp.plan.expression;

public enum ExpressionType {
    CONSTANT((short) -4, (short) 1400),
    TIMESTAMP((short) -3, (short) 1300),
    TIMESERIES((short) -2, (short) 1200),
    FUNCTION((short) -1, (short) 1100),

    NEGATION((short) 0, (short) 1000),
    LOGIC_NOT((short) 1, (short) 1000),

    MULTIPLICATION((short) 2, (short) 900),
    DIVISION((short) 3, (short) 900),
    MODULO((short) 4, (short) 900),

    ADDITION((short) 5, (short) 800),
    SUBTRACTION((short) 6, (short) 800),

    EQUAL_TO((short) 7, (short) 600),
    NON_EQUAL((short) 8, (short) 600),
    GREATER_EQUAL((short) 9, (short) 600),
    GREATER_THAN((short) 10, (short) 600),
    LESS_EQUAL((short) 11, (short) 600),
    LESS_THAN((short) 12, (short) 600),

    LIKE((short) 13, (short) 500),
    REGEXP((short) 14, (short) 500),

    IS_NULL((short) 15, (short) 475),

    BETWEEN((short) 16, (short) 450),

    IN((short) 17, (short) 400),

    LOGIC_AND((short) 18, (short) 300),

    LOGIC_OR((short) 19, (short) 200),

    NULL((short) 20, (short) 1400),
    ;

    private final short expressionType;
    private final short priority;

    ExpressionType(short expressionType, short priority) {
        this.expressionType = expressionType;
        this.priority = priority;
    }

    public short getExpressionTypeInShortEnum() {
        return expressionType;
    }

    public short getPriority() {
        return priority;
    }
}
